| APA | HSY. (2012, February 13). In Acronym Geek. Retrieved 21:03, February 13, 2012, from http://www.acronymgeek.com/HSY |
| MLA | "HSY." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/HSY>. |
| MHRA | 'HSY', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/HSY> [accessed 13 February 2012] |
| Chicago | "HSY", http://www.acronymgeek.com/HSY (accessed February 13, 2012). |
| CBE/CSE | HSY [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/HSY. |
| Bluebook | HSY, http://www.acronymgeek.com/HSY (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HSY, http://www.acronymgeek.com/HSY (optional description here) (as of Feb. 13, 2012, 21:03). |
| AMA | HSY. Acronym Geek. February 13, 2012, 21:03. Available at: http://www.acronymgeek.com/HSY. Accessed February 13, 2012, 21:03. |